Nokea
What is the final stage of labour?
- A. Dilation of the cervix.
- B. Delivery of the infant.
- C. Contraction of the uterus.
- D. Delivery of the placenta
Correct Answer: D
Rationale: The final stage of labor is the delivery of the placenta. This occurs after the baby is born. The placenta is essential for providing nutrients and oxygen to the baby during pregnancy, but once the baby is born, it needs to be expelled from the mother's body. This process is crucial to prevent postpartum complications.
A: Dilation of the cervix occurs in the first stage of labor.
B: Delivery of the infant happens in the second stage of labor.
C: Contraction of the uterus is a continuous process throughout labor but does not signify the final stage.
In summary, the correct answer is D because it represents the final step in the labor process, while the other options pertain to earlier stages of labor.
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A female athlete who took testosterone-like steroids for several months stopped having normal menstrual cycles. What is the best explanation for this observation?
- A. Testosterone stimulates inhibin production from the corpus luteum
- B. Testosterone binds to receptors in the endometrium, resulting in the endometrium’s failure to develop during the normal cycle
- C. Testosterone binds to receptors in the anterior pituitary that stimulate the secretion of follicle-stimulating hormone (FSH) and luteinizing hormone (LH)
- D. Testosterone inhibits the hypothalamic secretion of gonadotropin-releasing hormone and the pituitary secretion of LH and FSH
Correct Answer: D
Rationale: The correct answer is D because testosterone inhibits the hypothalamic secretion of gonadotropin-releasing hormone (GnRH) and the pituitary secretion of luteinizing hormone (LH) and follicle-stimulating hormone (FSH). This disruption in the normal hormonal feedback loop leads to the suppression of ovulation and the menstrual cycle. Option A is incorrect because inhibin is not directly affected by testosterone. Option B is incorrect as testosterone does not bind to endometrial receptors directly. Option C is incorrect because testosterone does not stimulate the secretion of FSH and LH from the anterior pituitary.
A 68-yr-old male patient tells the nurse that he is worried because he does not respond to sexual stimulation the same way he did when he was younger. Which is the nurse’s best response to the patient’s concern?
- A. “Interest in sex frequently decreases as men get older.”
- B. “Many men need additional sexual stimulation with aging.”
- C. “Erectile dysfunction is a common problem with older men.”
- D. “Tell me more about how your sexual response has change
Correct Answer: B
Rationale: The correct answer is B: "Many men need additional sexual stimulation with aging." With aging, physiological changes can affect sexual response. Additional stimulation may be required due to lower hormone levels and decreased sensitivity. This response acknowledges the patient's concern and provides a factual explanation.
Incorrect answers:
A: "Interest in sex frequently decreases as men get older." - While libido may decrease with age, it doesn't directly address the patient's concern about sexual response.
C: "Erectile dysfunction is a common problem with older men." - Erectile dysfunction is only one aspect of sexual response and may not be the main issue for the patient.
D: "Tell me more about how your sexual response has changed." - While this shows empathy, it doesn't provide information or address the potential need for additional stimulation.
Which is true of prostate cancer?
- A. It is commonly lethal.
- B. It is one of the less common forms of cancer.
- C. Family history does not appear to be a risk factor.
- D. Ethnicity is a risk factor.
Correct Answer: D
Rationale: The correct answer is D. Ethnicity is a risk factor for prostate cancer. African American men have a higher risk compared to other ethnicities. This is supported by research and epidemiological studies. Choice A is incorrect as prostate cancer, when detected early, has a high survival rate. Choice B is also incorrect as prostate cancer is one of the most common cancers in men. Choice C is incorrect as having a family history of prostate cancer is a known risk factor.
Sperm are formed in tightly coiled tubes called seminiferous tubules that are found within each ________.
- A. spermatic cord
- B. testis
- C. ductus deferens
- D. epididymis
Correct Answer: B
Rationale: The correct answer is B: testis. The seminiferous tubules are located within the testes, where sperm are produced through the process of spermatogenesis. The spermatic cord (A) contains blood vessels, nerves, and the vas deferens but not the seminiferous tubules. The ductus deferens (C) is a tube that carries sperm from the epididymis to the urethra, not where sperm are formed. The epididymis (D) is where sperm mature and are stored but not where they are initially formed. Therefore, the testis is the only choice where the seminiferous tubules are located for sperm production.
The lateral extremity of the Fallopian tube:
- A. opens in the abdominal cavity;
- B. captures the ovule released by the ovary;
- C. displays flared edges;
- D. is linked to the uterus through the uterine ostium;
Correct Answer: D
Rationale: Step-by-step rationale for why choice D is correct:
1. The lateral extremity of the Fallopian tube is connected to the uterus through the uterine ostium.
2. This connection allows the passage of the ovum from the Fallopian tube to the uterus for implantation.
3. The uterine ostium serves as the entry point for the ovum to travel from the Fallopian tube to the uterus.
4. Therefore, choice D is correct as it accurately describes the anatomical connection between the Fallopian tube and the uterus.
Summary:
- Choice A is incorrect because the lateral extremity of the Fallopian tube does not open in the abdominal cavity.
- Choice B is incorrect because the Fallopian tube does not capture the ovule released by the ovary.
- Choice C is incorrect because the lateral extremity of the Fallopian tube does not display flared edges.
- Choice D is correct as it accurately describes the anatomical connection